Total upfront cash to buy a flat.
Total upfront cost
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Deposit
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Stamp duty
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Agency fee
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Legal fees
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Your breakdown
Updates live as you type| Cost at completion | Amount |
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The cash gap that derails first purchases
The sticker price of a Hong Kong flat is only part of what you need on completion day. The deposit is the obvious chunk, but stamp duty, the estate agency commission and your solicitor's conveyancing fee all fall due as well, and together they can add hundreds of thousands of dollars to the cheque you write. Buyers who budget only for the down payment are the ones who scramble in the final fortnight. This calculator adds the four together so you can see the real cash requirement before you sign a provisional agreement. It deliberately separates each line, because the deposit is set by your mortgage, the stamp duty by the price, the agency fee by negotiation, and the legal fee by your solicitor.
What stamp duty looks like after the 2024 reset
Stamp duty deserves the closest attention, because the rules changed materially. In February 2024 Hong Kong abolished the demand-side duties that once hit second homes and non-permanent residents: Buyer's Stamp Duty, the old higher-rate ad valorem scale, and Special Stamp Duty on quick resales are gone. What remains is a single ad valorem duty on Scale 2, charged on a banded scale by price. As modelled here, properties up to $4 million attract only a fixed $100, then the rate steps up through bands such as 1.5 percent, 2.25 percent, 3 percent and 3.75 percent as the price climbs. Importantly, Hong Kong has no annual property transfer tax, no recurring purchase tax, and no sales tax on the transaction itself. These are the bands the calculator applies for 2025/26; confirm the current scale and the fixed-duty ceiling with the Inland Revenue Department, as Budgets adjust them.
An $8 million flat, costed to completion
Using the defaults, an $8,000,000 flat with a 30 percent deposit, a 1 percent agency fee and $15,000 of legal fees needs the following at completion. The deposit is $2,400,000. The flat sits in the band where the rate this calculator applies is 3 percent, so ad valorem stamp duty is $240,000. The agency fee at 1 percent is $80,000, and legal fees are $15,000. The total cash required is $2,735,000, which is $335,000 more than the deposit alone. That extra third of a million is exactly the gap that catches unprepared buyers.
Negotiation room and a fee buyers forget
The agency commission is the one line you can move. A 1 percent fee is typical, but it is negotiable, especially on a higher-value flat, so the calculator lets you change it. The deposit is driven by the loan-to-value ceiling your bank offers, which the tool takes as a percentage; if you can borrow more, your cash deposit shrinks but your stamp duty does not. The fee buyers most often forget is the mortgage arrangement and government registration cost, which the calculator folds into your legal-fee input rather than listing separately, so pad that figure if your solicitor quotes extras. One edge case matters: just above each stamp-duty band boundary the official IRD table applies marginal relief to soften the cliff, so for a price sitting a hair above a threshold the true duty can be lower than a flat band rate suggests. Check the IRD table near a boundary.
Buyer questions on upfront cost
Do first-time buyers pay less stamp duty in Hong Kong?
Since the 2024 abolition of the demand-side duties, the same ad valorem Scale 2 applies to most residential buyers, so there is no longer a separate penalty for second-home buyers to avoid. The fixed $100 duty on lower-priced flats does help anyone buying at the bottom of the market. Confirm any concession for which you qualify with the IRD, since eligibility rules around permanent residency and first purchases can still affect specific cases.
Is the deposit the same as the down payment?
In effect, yes, though the timing differs. You pay an initial deposit when you sign the provisional sale and purchase agreement, then the balance of the down payment at completion. The calculator treats the deposit as your total cash equity in the property, the part the mortgage does not cover, so it represents the full down payment rather than just the initial signing instalment.